Hello Kudo, You can use our dedicated server to run Rapid leech server script. Our dedicated server plans are displayed on http://www.webhosting.uk.com/dedicated-servers-web-hosting.php Should you have any queries, feel free to PM me or contact us through our Live Chat support on our website.
The best I can suggest is a dedicated server, given that rapidleech is going to use the same type of resources as a proxy site. That said, your needs would be best served on a dedicated server. We have several to choose from starting at just $89/mo. here: http://www.hostdrive.com/dedicated